Intermediate-selvage-forming mechanism for looms



No. s|7,as9. Patented Jan. |7, I899. w. J. LUTTON. INTERMEDIATE SELVAEEFORMING MECHANISM FOR LOUMS.

(Application filed Apr. 21, 1898.) (No Model.) 3 Sheets-Sheet l.

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(Application filed Apr. 21, 1898.)

3 Sheets-Sheet 2.

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No. 6l7,859.

W. J. LUTTON. INTERMEDIATE SELVAGE FOBIHNG MECHANISM FOR LOOMS.

(Application filed Apt. 21, 1898.)

Sheets-Shut 3.

(No Model.)

NITED STATES PATENT FFICE.

\VILLIAM J. LUTTON, OF PATERSON, NElV JERSEY.

INTERMEDlATE-SELVAGE-FORMING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 617,859, dated January17, 1899. Application filed April 21, 1898. Serial No. 678,332. (Nomodel.)

To all whom it may concern.-

Be it known that I, WILLIAM J. LUTTON, a citizen of the United States,and a resident of Paterson, in the county of Passaic and State of NewJersey, have invented new and useful Improvements inIntermediate-Selvage- Forming Mechanism for Looms, of which thefollowing is a specification.

My invention relates to certain improvements in looms, the object beingto provide means for inserting additional warp-threads into the fabricto form across or gauze weave therein, and more particularly to providea very simple and effective mechanism for inserting additionalwarp-threads into the weave to form selvages therein at predetermineddistances apart, along which the solid fabric may be cut to form ribbonsor strips of desired widths.

The object of my invention is to provide mechanism of the abovecharacter which may be applied to the loom without interfering in anymanner with the regular weaving of the fabric thereon and without thenecessity of a special arrangement of the regular warp and weft threadsof the fabric.

A practical embodiment of my invention is represented in theaccompanying drawings, in which- Figure 1 is a side view of a loomhaving my improved mechanism attached thereto. Fig. 2 is a transversevertical section of the loom, taken in the plane of the line 2 2 of Fig.1, looking toward the rear. Fig. 3 is a vertical section from front torear through the loom, taken in the plane of the line 8 3 of Fig. 2.Fig. d is an enlarged detail front view of a portion of the movableneedle-bar and reed at one side of the loom and the lever for impartingthe lateral reciprocatory movements to the needle-bar. Fig. 5 is a topplan View of the parts represented in Fig. 4. Fig. 6 is an enlargeddetail front view of a portion of the needle-bar and reed at the otherside of the loom, the said view also showing adjusting means fordetermining the limits of the lateral movements of the needle-bar. Fig.7 is a vertical central section taken in the plane of the line 7 7 ofFig. 6, and Fig. 8 is an exaggerated view of a portion of the fabric,showing the style of weave formed by the insertion of the auxiliarywarp-threads.

The loom may be of any of the usual forms now in use.

The loom which I have represented herein comprises the usual side framesA A, top connecting-beam A main drive-shaft B, and slay-beam G,connected to the said shaft. A pair of heddles D D are arranged to havealternate up and down movements, one of said heddles being connected tothe free end of a rocking lever cl, under the control of a cam e on arotary shaft E, connected with the main drive-shaft B by gearing e andb. The other heddle is connected with the floor or other suitablestationary support by means of a retracting-spring cl, the tendency ofthe said spring being to pull the heddle D downwardly, and thereby theheddle D upwardly, because of the flexible connections 61 between thesaid heddles, which pass over pulleys d supported by the top cross-beamA The regular warp-threads f lead from the warp-beam F between suitablespreadingrolls f f and from thence through the eyes in their respectiveheddles, so as to form the warp-sheds, the fabric as it is completedbein g led over the breast-beam A to the take-up roll F in the usualmanner. I have not represented herein the mechanism for supplying theweft-threads of the loom, as it is not necessary to the understanding ofthe present invention.

The mechanism for introducing the auxil iary warp-threads into thefabric as it is being woven consists of the following parts: Astationary reed-bar G is secured between the side frames of the loom inclose proximity to and in front of the heddles. The reed-bar is providedwith reeds g, which are arranged in groups along the reed-bar G atintervals, the distances between the groups being adjusted according tothe places in which the auxiliary warp-threads are to be Woven when itis intended to weave selvages in the fabric. These groups of reeds g arepreferably mounted in brackets g, which are adjustably secured along thebar G in the present instance by providing the bar with a plurality ofholes g located very closely together along the entire length of thebar, and providing the bracket g with a locking-bolt 9 which is causedto enter one of the said holes 9 The vertically and laterally movablenee= dle-bar is denoted by H, and it is located in front of the heddlesand the reed-bar and in close proximity to the reed-bar. The needlebarII is provided with a row of needles h, which are arranged in groupsalong the needle-bar II, in front of the groups of reeds g, when it isintended to weave a plurality of selvages in the fabric. These groups ofneedles are made adjustable along the bar II toward and away from eachother by mounting each group of needles in a bracket h and providing thebracket with a clamping screw or bolt 7L2, which is caused to enter oneof a series of holes 71. extending the entire length of the bar II. Eachgroup of needles may be adjusted a slight distance laterally by providing the bracket h with a lateral elongated slot it, through which thescrew bolt 7L2 passes. The bar It is provided at its opposite ends withupwardlyextended arms or branches 7L5 h, which branches are providedwith vertically-elon gated slots h 71. Guiding and retaining bolts 9* gare extended through said slots into engagement with the stationaryreed-bar G, which bolts are of considerably less diameter than the widthof the slots 7L7 7L8, whereby the said bolts serve to retain theneedle-bar and its needles in proximity to the reed-bar and at the sametime permit the needle-bar an extended vertical movement and a limitedlateral movement.

An auxiliary warp-beam I is suitably mounted in the loom, in the presentinstance near the front thereof, and from the said beam the warp-threadst' lead to the needles h without'passing through the main heddles D D,and after passing through the eyes of the said needles are led forwardlyand woven into the body of the fabrie.-

The means which I have shown for imparting a vertical reciprocatingmovement to the needle-bar comprises the following elements: A rockingleverj is engaged by a cam J on the shaft E, which lever is connectedwith the arms 7&5 7L6 of the needle-bar by means of flexibleconnections. These flexible connections in the present instance comprisea rod j, leading upwardly from the free end of the rocking lever j atone side of the loom, and a pair of cords 3' f, the one leading over apulley j and down into engagement with the arm 71. and the other leadingover pulleys j'j j and from thence down into engagement with the arm7L5. Retracting-springsj lead from the floor or other suitable supportto the needle-bar, serving to hold the rocking leverj at all times inengagement with the cam J.

The needle-bar is reciprocated laterally independently of its verticalreciproeatory movement by means of a cam K on the shaft E, which engagesa spring-actuated rocking lever 70, the free end of which lever isconnected to the needle-bar-operating lever L by a suitable rod Thelever L is pivoted at Z at its inner end to the reed-bar G, and it isprovided with a branch arm L, which is provided with operating-lugs Z P,arranged in position to engage the opposite sides of the arm hof theneedle-bar II. The upper end of the connecting-rod la is adjustablyconnected toward and away from the pivot Z of the lever to increase ordiminish the amount of lateral movement which the said lever will impartto the bar II. In the present instance this adjustable connection isarranged for by providing the outwardly-extended arm of the lever L witha series of holes 1 with one of which a suitable bolt or pin Z1 carriedby the upper end of the rod k, will engage.

In Figs. 6 and 7 I have represented means for adjusting the amount oflat-eral movement of the needle-bar other'than the width of the slot7L8. This means comprises a bracket M, secured to the reed-bar G andprovided with forwardly-extended arms m m, with which are engagedadjusting-screws m m which are in position to be alternately engaged bythe uprising arm h of the needle-bar. By these adjusting-screws theneedle-bar may be also adjusted bodily a short distance in one directionor the other.

The operation of my device is as follows: The regular warp-threads ofthe fabric between which the additional warp-thread is to be insertedare led from the heddles D I) through the reeds g. The auxiliarywarpthreads are led from the beam I up and through the eyes in theneedles and from thence forwardly. As the loom is operated to form thesheds of warp the needle-bar is not only moved up and down regularly tocause its auxiliary warp-threads to form sheds with the otherwarp-threads, but it is also moved laterally when the needles are intheir lowered position for causing them to carry the auxiliarywarp-threads upwardly, first on one side of their corresponding regularwarp-threads and then on the other side thereof. This movement, inconnection with the insertion of the regular Weft-thread, (not shown,)forms the weave shown in an exaggerated scale in Fig. 8.

When selvages are to be woven,the needles are arranged in groups,asshown,and the auxiliary warp-threads are thenled to these groups, andfrom thence they are woven into the fabric as above described. The solidfabric may then be out along between the selvage insertions to formstrips or ribbons. These ribbons may be formed of different widths byadjusting the reeds and needles along their respective bars,as has beenhereinbefore fully set forth. By this arrangement the auxiliarywarp-threads are not required to be passed through the regular heddlesof the loom.

Instead of inserting only two threads at each selvage,as herein shown,it is understood that any number may be inserted, as may be desired.

It is evident that changes might be resorted to in the form andarrangement of the several parts without departing from the spirit andscope of my invention. Hence I do not wish to limit myself strictly tothe structure herein set forth; but

What I claim is- 1. In a loom, the combination with the regular heddlesand their operating mechanism, of a needle-bar mounted in proximitythereto for feeding auxiliary warp-threads into the fabric being'woven,the needles on the said bar being arranged in groups and adjustablealong the bar for locating them at predetermined intervals apart, meansfor reciprocating the needle-bar vertically and means for reciprocatingthe needle-bar laterally, substantially as set forth.

2. In a loom, the combination with the regular heddles and theiroperating mechanism, of a stationary reed-bar located in front of theheddles, the reeds on said bar being arranged in groups and adjustablealong the bar for arranging them at predetermined distances apart and aneedle-bar mounted in proximity to the said reed-bar, the needles of theneedle-bar being arranged in groups to correspond with the reeds, meansfor reciprocating the needle-bar vertically and means for reciprocatingthe needle bar laterally, substantially as set forth.

In a loom, the combination with the regular heddles and their operatingmechanism, of a reed-bar, a needle-bar having a pin-andslot connectionwith the reed-bar, means for reciprocating the needle-bar vertically andmeans for reciprocating the needle-bar latterally, substantially as setforth.

4. In a loom, the combination with the regular heddles and theiroperating mechanism, of a reed-bar located in front of the said heddles,a needle-bar having vertically-elongated slots at its opposite ends andpins or bolts of less diameter than the widths of the said slotsprojecting from the reed-bar through the slots and provided with meansfor retainingthe needle-bar in proximity to the reed-bar, means forreciprocating the needle-bar vertically and means for reciprocating theneedlebar laterally, substantially as set forth.

5. In a loom, the combination with the heddles and their operatingmechanism, of a reed-bar, a needle-bar having a verticallyelongatedslot, a pin or bolt of less diameter than the width of theslot.projecting therethrough from the reed-bar and serving to hold theneedle-bar in proximity thereto, means for reciprocating the needle-barvertically means for reciprocating the needlebar laterally and means foradjusting the amount of lateral movement of the needlebar, substantiallyas set forth.

6. In a loom, a needle-bar having a series of holes throughout itslength, a needle-supporting bracket having an elongated slot in linewith said holes, needles uprisingfrom the said bracket and a boltentering said elongated slot and one of the said holes Whereby theneedles may be accurately adjusted to any desired position on theneedle-bar, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 4th day of April, 1898.

WILLIAM J. LUTTON.

Witnesses FREDK. HAYNES, EDWARD VIEsER.

